MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


BlackMatter


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7
SHA3-384 hash: 7b5c8837eaf3b27825707d7d6f8b0ce06147aa4d4f38ddbef1f13172d2d72cc411b16cf1f74e2d950a9a642f17105e51
SHA1 hash: 90f323fc4a052c2fcb44ca4f0b2429d0a08b9357
MD5 hash: b04bf7947543c8d78996323efedc719e
humanhash: robert-speaker-apart-jersey
File name:file
Download: download sample
Signature BlackMatter
Create hunting rule
File size:149'504 bytes
First seen:2026-01-23 07:01:49 UTC
Last seen:2026-01-23 16:23:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 41fb8cb2943df6de998b35a9d28668e8 (82 x BlackMatter, 9 x LockBit, 1 x DragonForce)
ssdeep 1536:XzICS4AwwRlcz5AxE4vGP1iU8KnliIs3iocZMgkGJp1kUM/9OmAnhU2MJYezjsVi:o6glyuxE4GsUPnliByocWepSVCezYiG
TLSH T1BCE36D21F212D073C87718F53736B572F39E8E2C19A96817EAD80F59BCA58132F14997
TrID 25.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
19.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.1% (.EXE) Win32 Executable (generic) (4504/4/1)
7.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
7.8% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter Bitsight
Tags:BlackMatter dropped-by-phorpiex exe


Avatar
Bitsight
url: http://195.178.136.19/16.exe

Intelligence

File Origin
# of uploads :
18
# of downloads :
122
Origin country :
US US
Vendor Threat Intelligence
Malware configuration found for:
LockBit
Details
LockBit
a PCG-lockbit seed, a RSA public key modulus, flags, hashes for excluded folders, files, and extensions, hashes for computer names, killed processes and services, a list of credentials, a ransom note, and information parsed from the ransom note
Link:
https://research.acce.ciphertechsolutions.com/results/dbed8b60-ee49-462d-ac17-1cd22a094abc/
Malware family:
lockbit
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-01-23 07:08:34 UTC
Tags:
lockbit ransomware auto-download braincipher darkside arch-scr
Link:
https://app.any.run/tasks/f3407c4d-d596-4f98-a3df-f81a93879dc6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/49842/
Detection(s):
Win.Ransomware.LockBitBlack-10033143-1
Create hunting rule

Win.Ransomware.BlackMatter-9965914-0
Create hunting rule

Win.Ransomware.Lazy-10003135-0
Create hunting rule

SecuriteInfo.com.Trojan.Encoder.42541.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69731d2bbcad3327ec07ee2a
Tags:
spawn
Verdict:
Malicious
Labled as:
Trojan.Ransom
Link:
https://www.hybrid-analysis.com/sample/857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7
Result
Gathering data
Malware family:
BlackMatter Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f8b8d9a7-622f-42f5-ac76-38c43fdc1fe7
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/b04bf7947543c8d78996323efedc719e
Detection:
lockbit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7/
Verdict:
Malicious
Threat:
Family.LOCKBIT
Link:
https://tip.neiki.dev/file/857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7
Threat name:
Win32.Ransomware.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2026-01-23 07:03:29 UTC
File Type:
PE (Exe)
AV detection:
33 of 36 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qv5jakxkuni6ojtw7n3ekq7c5d6fymzllca6vdp6ib77ev7zcptq._file
Verdict:
malicious
Label(s):
lockbit
Create hunting rule
Similar samples:
error
BlackMatter
Result
Malware family:
lockbit
Create hunting rule
Score:
  10/10
Tags:
family:lockbit defense_evasion discovery ransomware spyware stealer
Link:
https://tria.ge/reports/260123-ht3d6ses3e/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Control Panel
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Enumerates connected drives
Indicator Removal: File Deletion
Checks computer location settings
Deletes itself
Executes dropped EXE
Reads user/profile data of web browsers
Renames multiple (641) files with added filename extension
Unpacked files
SH256 hash:
857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7
MD5 hash:
b04bf7947543c8d78996323efedc719e
SHA1 hash:
90f323fc4a052c2fcb44ca4f0b2429d0a08b9357
Link:
https://www.unpac.me/results/c11ec9fd-69b6-4e91-849b-3a9792b6b934/
Malware family:
LockBit
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/857a902aeaa3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:CRIME_WIN32_RANSOM_BLACKMATTER
Create hunting rule
Author:Rony (@r0ny_123)
Description:Detects Blackmatter ransomware
Rule name:Darkside
Create hunting rule
Author:@bartblaze
Description:Identifies Darkside ransomware.
Rule name:lb_stack_string_decrypt_1
Create hunting rule
Author:CTI Purple Team
Description:This rule detects the code pattern of the Stack Strings decryption algorithm.
Rule name:Windows_Ransomware_Lockbit_369e1e94
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

BlackMatter

Executable exe 857a902aeaa351e72676fb764543e2e8fc5c332b5881ea8dfe407ff257f913e7

(this sample)

  
Dropped by
Phorpiex
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3762431/
Cape
Cape
https://www.capesandbox.com/analysis/49842/

Comments